triagonal

English

Etymology

Irregular formation of trigonal, after tetragonal etc.

Adjective

triagonal (comparative more triagonal, superlative most triagonal)

1. (nonstandard) Triangular, trigonal.
   • 1665, Robert Hooke, Micrographia, section XXXIX:

     [T]he greatest part of the face, nay, of the head, was nothing else but two large and protuberant bunches […] shap'd into a multitude of small Hemispheres, plac'd in a triagonal order […].

   • 2005, LazyTown (TV series), "Dear Diary" (season 1, episode 16): "The Mine Song"

     This mailbox is mine
     And this triagonal sign.
     That blue balloon, the month of June.
     They're mine, mine, mine, mine, mine.